St. Gregory the Great Parish & School

Greatness Through Service

What's New at St. Greg's:

Our Mission

As baptized members of the Roman Catholic Church, we endeavor to support and nurture our relationship with Christ and one another through the celebration of the Sacraments, especially the Eucharist. We strive to serve Christ through our longstanding commitment to education, hospitality and works of justice.

New to St. Greg's?

Click here to request more information about the parish or school.

About St. Greg's

Parish Office Hours & Contact Information

3160 South 63rd Street

Milwaukee, WI 53219

Monday -- Friday: 7:30 am to 4:30 pm
Phone: 414-543-8292
Fax: 414-328-3881


School Contact Information

Phone: 414-321-1350
Fax: 414-328-3881


Mass Times

Saturday: 4:00 pm
Sunday: 8:00 am and 10:00 am
Sunday: 6:00 pm with Praise Group (Click Here for current schedule)
Monday, Tuesday, Wednesday, Friday: 8:15 am
Thursday (when school is in session): 8:30 am
Thursday (when school is not in session): 8:15 am


This week at St. Greg's

Welcome newly baptized!


Our Lady of Lourdes


Living Our Faith


For Your Marriage

Archdiocese of Milwaukee

Archdiocesan Synod Information

Summer Office Hours

Summer Office Hours

Beginning the week of June 8th, the Parish Office hours will be 7:30-Noon on Fridays, and remain 7:30am-4:30pm Mondays through Thursdays.


The School office schedule for the summer months is as follows:
June 15th - June 30th the School Office will be open from 9:00 AM until 2:00 PM.

July - the School Office is closed ( if you require assistance, kindly leave a message and your call will be returned ).

August 3rd - 21st the School Office is open from 9:00 AM until 2:00 PM.

School Office hours resume their regular schedule effective August 24th.
Note: The School Office closes at noon on Fridays when there are summer office hours.

Mass Times

Saturday 4pm Mass of Anticipation
Sunday 8am & 10am
Sunday 6pm Mass with Praise Group (Dates Vary)


  • Sun, Jun 21st

  • Sun, Jun 14th
Older Publications »

Catholic Stewardship Appeal: See With God's Eyes


Click here for a message from our Pastor, Fr. Tom Demse, regarding the Catholic Stewardship Appeal


Archdiocesan Reorganization Plan

For important information regarding Archbishop Listecki's Reorganization Plan for the Archdiocese of Milwaukee, please see the following links:

Archbishop Listecki's Letter
Q&A from the Archdiocese of Milwaukee
Video Q&A from Archbishop Listecki